Great, thank you, your knowledge and research you made is very impressive! It would be great if you wrote article about known owners of Kampfwagenabzeichen. I'd surely buy a magazine or book containing such information.

I'm pretty sure that Rainer Strasheim, as the world's leading expert on early German armour, also knows a lot about it, however he didn't write much (there was a small mention about Kampfwagenabzeichen in "The German A7V tank..." from 1990 and I think he didn't write about it in his other publications).